mscLpE1ChanFlmFlmStatus 1.3.6.1.4.1.562.36.2.1.12.8.2.5.11.1.1

This attribute indicates the status of a Frame Relay channel on an E1 line. By combining the E1 channel-associated-signalling (CAS) A-bits status, and HDLC defect, a single value indicates the likely cause of the failure. This mechanism assumes that the far end equipment loops back signaling A-bits for some or all of the timeslots in a channel. The A-bits in channel are transmitted as '0'. If they are all received as '0', it is assumed that the E1 link is up in both directions. The presence of HDLC frames indicates that the service is connected. When A-bits and HDLC frames are correctly received, frameLinkUp is indicated. When neither are received, frameLinkDown is indicated. When HDLC frames are not receive but A-bits are not at fault, lossOfHdlc is indicated. When HDLC frames are received, but there is a fault in the any of timeslot's A-bits on a channel lossOfAbit is indicated.